CN1732368A - Gas producer - Google Patents
Gas producer Download PDFInfo
- Publication number
- CN1732368A CN1732368A CN 200380107651 CN200380107651A CN1732368A CN 1732368 A CN1732368 A CN 1732368A CN 200380107651 CN200380107651 CN 200380107651 CN 200380107651 A CN200380107651 A CN 200380107651A CN 1732368 A CN1732368 A CN 1732368A
- Authority
- CN
- China
- Prior art keywords
- aforementioned
- retainer
- gas
- gas generator
- ignition charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004033 plastic Substances 0.000 claims abstract description 39
- 229920003023 plastic Polymers 0.000 claims abstract description 39
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 68
- 239000000463 material Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- ULRPISSMEBPJLN-UHFFFAOYSA-N 2h-tetrazol-5-amine Chemical compound NC1=NN=NN1 ULRPISSMEBPJLN-UHFFFAOYSA-N 0.000 description 3
- GDDNTTHUKVNJRA-UHFFFAOYSA-N 3-bromo-3,3-difluoroprop-1-ene Chemical compound FC(F)(Br)C=C GDDNTTHUKVNJRA-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- NDEMNVPZDAFUKN-UHFFFAOYSA-N guanidine;nitric acid Chemical compound NC(N)=N.O[N+]([O-])=O.O[N+]([O-])=O NDEMNVPZDAFUKN-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000863 Ferronickel Inorganic materials 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- -1 polybutylene terephthalate Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 description 1
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000004450 Cordite Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/195—Manufacture
- F42B3/198—Manufacture of electric initiator heads e.g., testing, machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R2021/26029—Ignitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
- B60R22/4628—Reels with means to tension the belt in an emergency by forced winding up characterised by fluid actuators, e.g. pyrotechnic gas generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Air Bags (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
A gas producer comprising a cup body (3) in which a gas-producing agent (2) producing a gas by burning; two or more electrode pins (4) through which electricity is conducted; an igniting portion (20) with an igniting mechanism that ignites by conduction of electricity; and a holder (5) fixing the positions of the electrode pins (4) and the igniting portion (20), and sealing up the gas-producing agent (2) by engaging with the cup body (3), wherein the gas producer is characterized in that holes (23) through which the electrode pins (4) penetrate respectively are formed in the holder (5), a plastic member (6) is provided at portion of the periphery in a radial direction of each electrode pin (4), portion or the whole of the plastic member (6) is inserted in a hole (23), and electrode pins (4) and the plastic members (6) are fixed by plastic deformation of portions of the holder (5) at which portions the plastic members (6) are inserted.
Description
Technical field
The present invention relates to gas generator, particularly be suitable for making the gas generator of the vehicle person of the taking restraint device work such as seat belt pretensioner of automobile.
Background technology
One of safety device of the impact that produces when making it avoid automobile and collide as being used to protect the passenger, known have a seat belt pretensioner.This seat belt pretensioner is worked by a large amount of high temperature, the gases at high pressure that import from gas generator, thus the protection passenger.This gas generator has pyrophoric body and gas-forming agent, and pyrophoric body is got angry, thereby gas-forming agent is ignited and made its burning, produces a large amount of gas hastily.
As an example of in the past gas generator, known have a generator shown in Figure 15 (for example, with reference to patent documentation 1: the spy opens the 2001-260815 communique).The gas generator 101 of Figure 15 comprises: the cup 103 of filling gas-forming agent 102, ignition charge 105a is accommodated in ignition mechanism 105 among the body 105g, ignition mechanism 105 and cup 103 rivetings are gone into and the retainer 106 of sealing gas propellant 102.At this, in ignition mechanism 105, to switch on from the signal of not shown sensor be the upright two electrode pin 105d that establish of purpose, integrally formed with the main body 105b that is formed from a resin to receive.Open at the front end of electrode pin 105d and to establish electric bridge line 105f, disposing the igniting pearl 105c that forms and contact ignition charge 105a in the mode that covers electric bridge line 105f.In addition, retainer 106 is assembled on the seat belt pretensioner, in order not disperse because of pressure inside makes gas generator when working, is made by raw material such as iron, aluminium.Cup 103 forms the shape with respect to the band ladder of the bottom hole enlargement of cup.
In addition, in order to prevent that moisture from immersing from the outside, ignition mechanism 105 is riveted on the retainer 106 with O shape ring 110, and then, shorting clip 108 embeds in the retainers 106, and described shorting clip 108 makes the electrode pin 105d short circuit of ignition mechanism 105 and the maloperation that prevents to be caused by static etc.
When this gas generator 101 receives from the signal of not shown sensor, at first the igniting pearl 105c in the ignition mechanism 105 gets angry, and then, passes to ignition charge 105a, utilize then this flame gas-forming agent 102 is ignited and make its burning, produce a large amount of gas thus hastily.
As shown in figure 15, in the ignition mechanism 105 of in the past gas generator 101, electrode pin 105d and the main body 105b that is formed from a resin are configured as one.In addition, electrode pin 105d can easily not come off in main body 105b internal strain.
, in gas generator 101, when the igniting of the conditions of high temperature such as for example vehicle fire, because under the situation that the main body that its heat is made resin is softening, the gas inside propellant burns, electrode pin may fly out.
In addition, for integrally formed electrode pin 105d and main body 105b, corresponding each ignition mechanism to inlay shaping, so aspect reducing cost, also there is limit.In addition, because main body 105b that resin is made and electrode pin 105d are shaped integratedly, so be difficult to improve its sealing to moisture etc.
Summary of the invention
The objective of the invention is to provides a kind of gas generator with inexpensive method of manufacturing, and it has and utilizes resin to make the structure of the interface insulation of retainer and electrode pin, can improve the sealing with respect to moisture etc.In addition, the present invention also aims to provide a kind of gas generator, though its when under hot conditions, working, electrode pin also is difficult to fly out.
The gas generator of the present invention of making in order to solve aforementioned problems comprises: filling produces the cup of the gas-forming agent of gas by burning, the electrode pin more than two that is used to switch on, igniting portion with the ignition mechanism of getting angry by energising, the fixing position of former electrodes pin and aforementioned igniting portion and engage with aforementioned cup and seal the retainer of aforementioned gas-forming agent, in this gas generator, on retainer, be formed with the hole that each electrode pin connects respectively, on at least a portion towards periphery of the footpath of each electrode pin, dispose plastic components, part or all of plastic components is inserted in the hole, by making the retainer plastic deformation of the part that is inserted with plastic components, electrode pin and plastic components are fixed.
According to such formation, around each electrode pin, dispose plastic components respectively, fix by making the retainer plastic deformation, thus compared with the past, the smaller volume of parts of plastics.In addition, by each electrode pin is fixed, can improve sealing.In addition, because the volume of parts of plastics is less, so can make following structure: even gas generator is at high temperature worked, compare with structure in the past, electrode pin also is difficult to fly out.
Thus, the present invention can provide the gas generator that can improve the sealing of moisture etc. with inexpensive method of manufacturing, and in addition, can provide following structure: even gas generator is at high temperature worked, electrode pin also is difficult to fly out.
In addition, preferably, in gas generator of the present invention, opposite side electrode pin, that be projected into cup side distortion makes it be difficult to come off to a side of the connector side of retainer.
According to such formation, because opposite side electrode pin, that be projected into the cup side is bent or conquassation and being out of shape, so can make the structure that electrode pin is difficult to be shed to the gas generator outside.
In addition, preferably, in the gas generator of the present invention, igniting portion comprises at least: the conductive part that is used to switch on, link conductive part the joint portion, convert the electrical signal to heat heater, be formed on the ignition charge around the heater; Igniting portion is fixed on the opposite side of electrode pin.
According to such formation, can produce igniting portion in addition in large quantities.Be fixed up with the upright retainer of having established electrode pin again after making, can reduce manufacturing cost thus.
In addition, preferably, gas generator of the present invention has: by the ignition flame of igniting portion ignite and with fire pass to gas-forming agent ignition charge, take in the ignition charge retainer of ignition charge, igniting portion is positioned by joint portion and the chimeric of ignition charge retainer.
According to such formation, igniting portion is located reliably, can prevent from owing to the vibration of automobile etc. the ignition charge of igniting portion to be peeled off etc.
In addition, preferably, in the gas generator of the present invention, be formed at of the eccentricity of central axis ground configuration of the combustion chamber of ignition charge retainer from gas generator.
According to such formation, utilize space radially to be configured to increase effective volume gas generator, that can load gas-forming agent toward the igniting portion that is projected into the axial gas-forming agent of gas generator one side.
In addition, preferably, in the gas generator of the present invention, on the ignition charge retainer, be formed with cover with rigidity.
According to such formation, as long as the pressure in the ignition charge retainer does not reach authorized pressure, the ignition charge retainer just can not break.Thus, can make flame have directive property from the ignition charge retainer, can be reliably and the interior gas-forming agent of retainer that burns efficiently.
Description of drawings
Fig. 1 is the axial cutaway view of the 1st embodiment of gas generator of the present invention.
Fig. 2 is the axial cutaway view that has changed in Fig. 1 after the 90 degree directions.
The figure of A-A ' the section gained of Fig. 3 from axial upper surface observation Fig. 2.
Fig. 4 is the partial enlarged drawing of the plastic components 6 of gas generator of the present invention, is the figure that is used to illustrate the fixing means of plastic components 6.
Fig. 5 is the axial cutaway view of the 2nd embodiment of gas generator of the present invention.
Fig. 6 is the axial cutaway view that has changed 90 degree directions in Fig. 5.
Fig. 7 is the figure that observes B-B ' the section gained Fig. 6 from axial upper surface.
Fig. 8 is the axial cutaway view of the 3rd embodiment of gas generator of the present invention.
Fig. 9 is the axial cutaway view that has changed 90 degree directions in Fig. 8.
Figure 10 is the figure that observes C-C ' the section gained Fig. 9 from axial upper surface.
Figure 11 is the axial cutaway view of the 4th embodiment of gas generator of the present invention.
Figure 12 is the axial cutaway view that has changed 90 degree directions in Figure 11.
Figure 13 is the figure that observes D-D ' the section gained Figure 12 from axial upper surface.
The figure of the mode example when Figure 14 is the igniting portion that represents to make gas generator of the present invention continuously.
Figure 15 is the axial cutaway view of gas generator in the past.
The specific embodiment
The 1st embodiment
Use Fig. 1～Fig. 4 that the 1st embodiment of gas generator of the present invention is described.
In Fig. 1, the gas generator 201 of present embodiment has: filling produces the cup 3 and a pair of electrode pin that is set up in parallel 4 of the gas-forming agent 2 of gas by burning, be connected with heater 7 at front end electrode pin 4, that be projected into the opposite side 21 of cup 3 sides, covering the formation of heater 7 ground has a gunpowder 8, and these igniting portions 20 are fixed on the retainer 5.Root at the opposite side 21 of electrode pin 4 disposes liner 21, is used for preventing because the spark of generations such as static is got angry ignition charge mistakenly.
In addition, sandwiched ignition charge retainer 10 between the reducing diameter part 3b of retainer 5 and cup 3, portion is formed with igniting portion 20 and ignition charge 9 residing combustion chambers 22 within it, disposes ignition charge 9 around ignition charge 8.
Fig. 4 represents the enlarged drawing of the standing part of plastic components 6.As shown in Figure 4, on columned plastic components 6, in its hole, insert electrode pin 4, in addition, on its outer peripheral face, be formed with recess 26.This plastic components 6 is inserted in the hole 23 of retainer 5.By pressurizing tool (not shown) from plastic components 6 axially to pressurization around the hole 23 of retainer 5, pressurization part 27 that made with the shape plastic deformation accordingly of pressurizing tool, retainer 5.Thus, the hole 23 of retainer 5 is plastic deformation and local undergauge also, and the part of the wall in the hole 23 of retainer 5 enters in the recess 26 that is formed at around the plastic components 6, thereby forms the joint portion.Electrode pin 4 and plastic components 6 such riveted and fixed are on retainer 5.
As shown in Figures 1 and 2, retainer 5 and cup 3 are at the peristome 3a place of cup 3, by being fixed together in the radially inner side riveted joint.In addition, on the 3c of the bottom of cup 3, be provided with the otch of a plurality of wire.When the gas-forming agent 2 in being accommodated in cup 3 burnt, this otch broke and emits gas.
As the material of retainer 5 and cup 3, for example use the metal parts of iron, stainless steel, aluminium, copper, brass etc.Generally come these metal parts are formed, thereby be maintained device 5 and cup 3 by the operation of compacting, casting, forging, cutting etc.
In addition, as the material of ignition charge retainer 10, can be expelled to by the material that will in resins such as polybutylene terephthalate (PBT), PETG, nylon 6, nylon 66, polyphenylene sulfide, polyphenylene oxide, polymine, polyimide, polyether-ether-ketone, polyether sulfone, contain glass fibre, carbon etc. to omit in the illustrated resin mould and be shaped.
In addition, plastic components 6 is the short tubular in the hole with perforation, as the material of ignition charge retainer 10 and in the material of enumerating, particularly as the material of sealing and excellent heat resistance, be preferably polyimide, polyether-ether-ketone, polyether sulfone.
As the material of electrode pin 4, form by for example electric conductivity raw material such as stainless steel, carbon steel, ferronickel, implement from the teeth outwards gold-plated etc., by plastic components 6 with retainer 5 electric insulations.
In the connector side of the retainer 5 that is projected into gas generator 201 promptly on each electrode pin 4 of a side 24, the misoperation in order to prevent to be caused by static etc. embeds the not shown shorting clip that short circuit between electrode pin of making 4 is arranged.Thus, when packing into, seat belt pretensioner etc. removing short circuit.
In addition, the gas-forming agent 2 of the gas generator 201 of present embodiment not via filter or cooling agent be filled into the inboard of cup 3.At this, operable gas-forming agent can be enumerated in the past the cordite that uses etc., but preferred gas-forming agent contains: the organic compounds containing nitrogen of the composition that acts as a fuel, as the inorganic compound and at least a above additive of oxidizer composition.Specifically, the composition that acts as a fuel can enumerate being selected from more than at least a in the group that Aminotetrazole, guanidine nitrate, nitroguanidine constitute.In addition, as oxidizer composition, can enumerate being selected from more than at least a in strontium nitrate, ammonium nitrate, potassium nitrate, ammonium perchlorate, potassium perchlorate, the group that basic copper nitrate constituted.As additive, can enumerate silica, silicon nitride, molybdenum trioxide, talcum, clay, organosilan coupling agent etc.In addition, as the additive that can add in the gas-forming agent, can enumerate adhesive,, can list and be selected from more than at least a in the group that more sore glue, methylcellulose, carboxymethyl cellulose, water-soluble cellulose ether, polyethylene glycol, polyacrylamide constituted as adhesive.As the combination of preferred gas-forming agent, this gas-forming agent contains: the 5-Aminotetrazole of the composition that acts as a fuel and guanidine nitrate, as the strontium nitrate of oxidant and ammonium perchlorate, as the polyacrylamide of adhesive.More preferably, gas-forming agent contains: the 5-Aminotetrazole of the composition that acts as a fuel is below the above 30 weight % of 10 weight %, guanidine nitrate is below the above 35 weight % of 10 weight %, as the strontium nitrate of oxidant is more than the 10 weight % below the 35 weight %, the ammonium perchlorate is below the above 35 weight % of 15 weight %, is more than the 1 weight % below the 10 weight % as the polyacrylamide of adhesive.
Fig. 3 illustrates the figure when axial upper surface is observed A-A ' cross section Fig. 2.
Below, the action of gas generator 201 is described.If not shown collision sensor senses is to the collision to automobile, then electrode pin 4 is switched on.Then, heater 7 heatings, ignition charge 8 is got angry.Then, because the ignition of ignition charge 8, ignition charge 9 is got angry and burning.Be accompanied by the burning of ignition charge 9,22 inside, combustion chamber of ignition charge retainer 10 become HTHP, and from the hot-fluid of the frangible portion 25 ejection high temperature that formed by the otch that sets in advance etc., gas-forming agent 2 is got angry also burning.A large amount of gases that burning by gas-forming agent 2 is created in the cup 3 make the interior pressure of cup 3 sharply increase, and finally make the otch fracture on the bottom 3c that is located at cup 3, emit gas.
Below, the manufacture method of gas generator 201 is described.The gas-forming agent 2 of ormal weight is measured and is loaded in the cup 3.Then, ignition charge retainer 10 embeds the reducing diameter part 3b of cups 3, and the ignition charge 9 of ormal weight is loaded in combustion chamber 22 parts of ignition charge retainer 10.Embed plastic components 6 respectively around electrode pin 4, in addition, these parts embed via liner 11 and are located in the hole 23 of retainer 5.Then, make the mode plastic deformation of hole 23, rivet with undergauge, thus on retainer 5 fixed electrode pin 4, plastic components 6, liner 11.Then, the opposite side 21 front ends connection heater 7 in electrode pin 4 forms ignition charge 8 around it.The retainer 5 that has formed igniting portion 20 like this is inserted in the cup 3.At this moment, igniting portion 20 inserts in the ignition charge retainer 10 ordinatedly, and by the peristome 3a of riveted joint cup 3 on the undergauge direction, retainer 5 is fixed together with cup 3.At last, embed not shown shorting clip.
The 2nd embodiment
Then, use Fig. 5～Fig. 7 that the 2nd embodiment of gas generator of the present invention is described.In addition, in the present embodiment, for aforementioned the 1st embodiment in the general position of gas generator 201, use identical mark, omit detailed explanation.
In the gas generator 202 of the present embodiment of Fig. 5～shown in Figure 7, be that with the difference of the gas generator 201 of the 1st embodiment of earlier figures 1～shown in Figure 4 igniting portion 20 comprises: the conductive part 12 that is used to switch on, link each other joint portion 13 of conductive part, with the signal of telecommunication be converted to heat heater 7, be formed on the ignition charge 8 around the heater 7.Be fixed together with electrode pin 4 by the conductive part 12 of methods such as welding, riveted joint, solder, solder brazing igniting portion 20.And then, as with the difference of the gas generator 201 of the 1st embodiment, also have more following: the mode with the gas-forming agent side outside that covers ignition charge retainer 10 is provided with cover 14.
At this,, use for example electric conductivity raw material of stainless steel, carbon steel, ferronickel etc. as the material of conductive part 12.In addition, as the material of joint portion 13, use non-conductive materials such as raw materials for plastics production.Like this,, as shown in figure 14, igniting portion 20 can be under continuum of states, only made, manufacturing cost can be significantly reduced by forming igniting portion 20 with electrode pin 4 splits ground.
In addition, the joint portion 13 of being located at igniting portion 20 is configured as interval with conductive part 12 and keeps certain and consistent with the interior shape of the combustion chamber 22 of ignition charge retainer 10, igniting portion 20 can be positioned on the ignition charge retainer 10 thus.Like this, can prevent that the ignition charge 8 of igniting portion 20 is because vibration and defeated and dispersed etc.
In addition, the gas generator 202 of present embodiment is provided with cover 14, to cover the gas-forming agent side outside of ignition charge retainer 10.At this, ignition charge retainer 10 preferably adopts with covering 14 integrally formed forms, and detailed says, covers 14 injection moulding and is advisable to have inlayed.As the material that is used to cover 14, use the metal parts of iron, stainless steel, copper, brass etc.Generally come these metal parts are formed, obtain covering 14 thus by operations such as compacting, casting, forging, cuttings.Flame at gas generator 202 internally fired ignition charges 9 is emitted to gas-forming agent 2 from bottom surface or the frangible portion on the side 25 of being located at cover 14 with having directive property, so the flame of ignition charge 9 can reliably and efficiently be ignited to gas-forming agent 2.
In addition, in the gas generator 202 of present embodiment, cup 3 is fixed on the retainer 5 by welding 30 at its peristome 3a place.Like this, can guarantee sealing more reliably to inner gas-forming agent 2.
The 3rd embodiment
Then, use Fig. 8～Figure 10 that the 3rd embodiment of gas generator of the present invention is described.In addition, in the present embodiment, for aforementioned the 1st embodiment and the 2nd embodiment in gas generator 201 and 202 general positions, use identical mark, omit detailed explanation.
In the gas generator 203 of the present embodiment of Fig. 8～shown in Figure 10, be that with the difference of the gas generator 202 of the 2nd embodiment of Fig. 5～shown in Figure 7 the combustion chamber 22 of being located at ignition charge retainer 10 is provided with from the eccentricity of central axis ground of gas-forming agent 2.At this moment, the conductive part 12 of igniting portion 20 with bending 90 the degree forms be fixed on (with reference to Fig. 9) on the electrode pin 4.Like this, dispose combustion chamber 22, can increase the effective volume that to load gas-forming agent 2 by the radial space of utilizing gas generator 203 inside.And then difference also is not to be provided with cover 14.
The 4th embodiment
Then, use Figure 11～Figure 13 that the 4th embodiment of gas generator of the present invention is described.In addition, in the present embodiment, for aforementioned embodiments in the general position of gas generator 203, use identical mark, omit detailed explanation.
In the gas generator 204 of the present embodiment of Figure 11～shown in Figure 13, be that with the difference of the gas generator 203 of the 3rd embodiment of Fig. 8～shown in Figure 10 electrode pin 4 is fixed with igniting portion 20 with the form of being out of shape (crooked 90 degree) at opposite side 24.Like this, can make electrode pin 4 and be difficult to the structure that comes off to gas generator 204 outsides.And then difference also is to be provided with cover 14.
In addition, though the present invention is recorded in the above-mentioned preferred implementation, the invention is not restricted to above-mentioned embodiment.Be interpreted as in not breaking away from purport of the present invention and scope, can implementing other embodiment.
Claims (6)
1. gas generator, it comprises: filling by burning produce the cup (3), the electrode pin more than two (4) that is used to switch on, igniting portion (20) of the gas-forming agent (2) of gas with the ignition mechanism of getting angry by energising, fixedly former electrodes pin (4) and aforementioned igniting portion (20) the position and engage the retainer (5) that seals aforementioned gas-forming agent (2) with aforementioned cup (3)
On aforementioned retainer (5), be formed with the hole (23) that aforementioned each electrode pin (4) connects respectively, on at least a portion towards periphery of the footpath of aforementioned each electrode pin (4), dispose plastic components (6), part or all of aforementioned plastic components (6) is inserted in the aforementioned apertures (23), by making aforementioned retainer (5) plastic deformation of the part that is inserted with aforementioned plastic components (6), former electrodes pin (4) and aforementioned plastic components (6) are fixed.
2. gas generator as claimed in claim 1 is characterized in that, opposite side (21) former electrodes pin (4), that be projected into aforementioned cup (3) side distortion makes it be difficult to come off to a side (24) of the connector side of aforementioned retainer (5).
3. gas generator as claimed in claim 1, it is characterized in that aforementioned igniting portion (20) comprises at least: the conductive part that is used to switch on (12), link aforementioned conductive part joint portion (13), convert the electrical signal to heat heater (7), be formed on aforementioned heater (7) ignition charge (8) on every side; Igniting portion (20) is fixed on the opposite side (21) of former electrodes pin (4).
4. gas generator as claimed in claim 3, it is characterized in that, have: by the ignition flame of aforementioned igniting portion (20) ignite and with fire pass to aforementioned gas-forming agent (2) ignition charge (9), take in the ignition charge retainer (10) of aforementioned ignition charge (9), aforementioned igniting portion (20) is by aforementioned joint portion (13) chimeric being positioned with aforementioned ignition charge retainer (10).
5. gas generator as claimed in claim 1 is characterized in that, is formed at the eccentricity of central axis ground configuration of the combustion chamber (22) of aforementioned ignition charge retainer (10) from aforementioned gas generator.
6. gas generator as claimed in claim 1 is characterized in that, (10) are formed with the cover (14) with rigidity on aforementioned ignition charge retainer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002374828 | 2002-12-25 | ||
| JP374828/2002 | 2002-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1732368A true CN1732368A (en) | 2006-02-08 |
Family
ID=32677312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200380107651 Pending CN1732368A (en) | 2002-12-25 | 2003-12-24 | Gas producer |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1577633A4 (en) |
| JP (1) | JP4537210B2 (en) |
| CN (1) | CN1732368A (en) |
| AU (1) | AU2003296096A1 (en) |
| WO (1) | WO2004059239A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364819C (en) * | 2006-03-10 | 2008-01-30 | 中国航天科技集团公司第四研究院第四十二所 | Air generator for seat by a secondary driver |
| CN101595363A (en) * | 2006-11-28 | 2009-12-02 | 肖特股份公司 | The ignition installation that is used for pyrotechnic protection equipment |
| CN102123889A (en) * | 2008-10-08 | 2011-07-13 | 高田-彼得里公开股份有限公司 | Gas generator for an airbag module |
| CN101990506B (en) * | 2008-04-10 | 2013-03-20 | 奥托立夫开发公司 | Gas generator for a safety device for a motor vehicle |
| CN103221268A (en) * | 2010-12-02 | 2013-07-24 | 奥托立夫开发公司 | Belt retractor with a switchable force-imiting device for a seatbelt of a motor vehicle |
| CN105953664A (en) * | 2016-05-04 | 2016-09-21 | 中国船舶重工集团公司第七○研究所 | Novel minitype gas generator |
| CN109177912A (en) * | 2018-10-17 | 2019-01-11 | 中国工程物理研究院总体工程研究所 | Check valve-type multi-stage gas generators |
| CN110388523A (en) * | 2018-04-19 | 2019-10-29 | 费斯托股份有限两合公司 | Maintenance device |
| CN114407824A (en) * | 2021-12-14 | 2022-04-29 | 均胜汽车安全系统（长兴）有限公司 | Gas generator with ignition tube with ignition and explosion functions |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4587783B2 (en) * | 2004-11-10 | 2010-11-24 | 日本化薬株式会社 | Unit for driving gas generator and pretensioner |
| JP2008062685A (en) * | 2006-09-05 | 2008-03-21 | Daicel Chem Ind Ltd | Apparatus including igniter assembly |
| JP2009007526A (en) * | 2007-06-29 | 2009-01-15 | Kobe Steel Ltd | Coating composition for releasing and coated substrate having coating film from the composition |
| JP6375482B2 (en) * | 2014-02-21 | 2018-08-22 | Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社 | Gas generator |
| JP7266412B2 (en) * | 2019-01-18 | 2023-04-28 | 日本化薬株式会社 | gas generator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19637587A1 (en) * | 1996-09-14 | 1998-03-19 | Dynamit Nobel Ag | Ignition / ignition element with an ignition bridge arranged on a chip |
| DE19836280C1 (en) * | 1998-08-11 | 2000-05-11 | Telefunken Microelectron | Pyrotechnic igniter with integrated electronics to trigger a restraint system |
| FR2790078B1 (en) * | 1999-02-18 | 2004-11-26 | Livbag Snc | ELECTROPYROTECHNIC IGNITER WITH ENHANCED IGNITION SAFETY |
| FR2790077B1 (en) * | 1999-02-18 | 2001-12-28 | Livbag Snc | ELECTRO-PYROTECHNIC IGNITER WITH INTEGRATED ELECTRONICS |
| WO2001031281A1 (en) * | 1999-10-28 | 2001-05-03 | Daicel Chemical Industries, Ltd. | Electric type initiator and gas generator |
| US6341562B1 (en) * | 2000-02-22 | 2002-01-29 | Autoliv Asp, Inc. | Initiator assembly with activation circuitry |
| JP4335725B2 (en) * | 2004-03-30 | 2009-09-30 | 日本化薬株式会社 | Gas generator |
-
2003
- 2003-12-24 AU AU2003296096A patent/AU2003296096A1/en not_active Abandoned
- 2003-12-24 CN CN 200380107651 patent/CN1732368A/en active Pending
- 2003-12-24 WO PCT/JP2003/016628 patent/WO2004059239A1/en active Application Filing
- 2003-12-24 EP EP03786286A patent/EP1577633A4/en not_active Withdrawn
- 2003-12-24 JP JP2004562924A patent/JP4537210B2/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364819C (en) * | 2006-03-10 | 2008-01-30 | 中国航天科技集团公司第四研究院第四十二所 | Air generator for seat by a secondary driver |
| CN101595363B (en) * | 2006-11-28 | 2013-05-22 | 肖特股份公司 | Firing apparatus for a pyrotechnic protection apparatus |
| CN101595363A (en) * | 2006-11-28 | 2009-12-02 | 肖特股份公司 | The ignition installation that is used for pyrotechnic protection equipment |
| CN101990506B (en) * | 2008-04-10 | 2013-03-20 | 奥托立夫开发公司 | Gas generator for a safety device for a motor vehicle |
| CN102123889B (en) * | 2008-10-08 | 2014-06-04 | 高田-彼得里公开股份有限公司 | Gas generator for an airbag module |
| CN102123889A (en) * | 2008-10-08 | 2011-07-13 | 高田-彼得里公开股份有限公司 | Gas generator for an airbag module |
| CN103221268A (en) * | 2010-12-02 | 2013-07-24 | 奥托立夫开发公司 | Belt retractor with a switchable force-imiting device for a seatbelt of a motor vehicle |
| CN103221268B (en) * | 2010-12-02 | 2016-11-23 | 奥托立夫开发公司 | The band compensator with shift-variable load limiting device for car belt |
| CN105953664A (en) * | 2016-05-04 | 2016-09-21 | 中国船舶重工集团公司第七○研究所 | Novel minitype gas generator |
| CN110388523A (en) * | 2018-04-19 | 2019-10-29 | 费斯托股份有限两合公司 | Maintenance device |
| CN109177912A (en) * | 2018-10-17 | 2019-01-11 | 中国工程物理研究院总体工程研究所 | Check valve-type multi-stage gas generators |
| CN109177912B (en) * | 2018-10-17 | 2023-09-05 | 中国工程物理研究院总体工程研究所 | One-way valve type multi-stage gas generator |
| CN114407824A (en) * | 2021-12-14 | 2022-04-29 | 均胜汽车安全系统（长兴）有限公司 | Gas generator with ignition tube with ignition and explosion functions |
| CN114407824B (en) * | 2021-12-14 | 2022-12-02 | 均胜汽车安全系统（长兴）有限公司 | Gas generator with ignitions and explosion functions of igniters |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2004059239A1 (en) | 2006-04-27 |
| WO2004059239A1 (en) | 2004-07-15 |
| EP1577633A1 (en) | 2005-09-21 |
| JP4537210B2 (en) | 2010-09-01 |
| AU2003296096A1 (en) | 2004-07-22 |
| EP1577633A4 (en) | 2007-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1732368A (en) | Gas producer | |
| CN1323875C (en) | Gas generator | |
| EP1731383B1 (en) | Metal holder with electrode pin, method of manufacturing the metal holder, and gas generator | |
| US5639986A (en) | Airbag igniter and method of manufacture | |
| CN1140765C (en) | Initiator assembly | |
| US6009809A (en) | Bridgewire initiator | |
| KR100656577B1 (en) | Initiator | |
| US11940255B2 (en) | Igniting unit, especially for an inflator, inflator, airbag module, vehicle safety system and method of manufacturing an igniting unit | |
| EP2426015B1 (en) | Gas generator | |
| CN1243652C (en) | Mixed gas generater with double tubular housing and hole column | |
| JP4244365B2 (en) | Ignition composition and igniter using the ignition composition | |
| CN1863695A (en) | Gas producer | |
| JP4455918B2 (en) | Gunpowder technical separation equipment | |
| US6763764B2 (en) | Multi-unit pyrotechnic initiation system | |
| JP6419109B2 (en) | Plasma jet plug | |
| EP2626256A1 (en) | Gas generator, holder for gas generator, and method for manufacturing holder for gas generator | |
| JP2010173559A (en) | Gas generator | |
| CN1509240A (en) | Gas generator | |
| CN114341589A (en) | Pyrotechnic squib and method for producing a pyrotechnic squib | |
| JP2010143270A (en) | Gas generator | |
| JP5545831B2 (en) | Gas generator | |
| CN1616915A (en) | Squib | |
| CN100347513C (en) | Gas generator | |
| CN210212321U (en) | Squib module, gas generator and airbag | |
| CN1579846A (en) | Initiator and gas generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |